Pet bed



FIG. 1 is a front perspective view of applicant's design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a top view thereof.

The ornamental design for a pet bed, as shown and described.